package com.heima.kafka.simple;

import org.apache.kafka.clients.producer.*;
import java.util.Properties;

/**
 * @Description:
 * @Version: V1.0
 */
public class ProducerFastStart {

    private static final String TOPIC = "itcast-heima";

    public static void main(String[] args) throws Exception {

        //添加kafka的配置信息
        Properties properties = new Properties();
        //配置broker信息
        properties.put("bootstrap.servers","192.168.200.129:9092");
        // key value 序列化 String
        properties.put(ProducerConfig.KEY_SERIALIZER_CLASS_CONFIG,"org.apache.kafka.common.serialization.StringSerializer");
        properties.put(ProducerConfig.VALUE_SERIALIZER_CLASS_CONFIG,"org.apache.kafka.common.serialization.StringSerializer");
        // 重试次数
        properties.put(ProducerConfig.RETRIES_CONFIG,10);

        //生产者对象
        KafkaProducer<String,String> producer = new KafkaProducer<String, String>(properties);

        //封装消息
        for (int i = 0; i < 10; i++) {
            ProducerRecord<String,String> record = new ProducerRecord<String, String>(TOPIC,"00001"+i,"hello kafka"+i);
//            Future<RecordMetadata> future = producer.send(record);
//            System.out.println(future.get().offset());
//            System.out.println(future.get().partition());


            //异步发送消息
            try {
                producer.send(record, new Callback() {
                    @Override
                    public void onCompletion(RecordMetadata recordMetadata, Exception e) {
                        if(e!=null){
                            e.printStackTrace();
                        }
                        System.out.println(recordMetadata.offset());
                    }
                });
            }catch (Exception e){
                e.printStackTrace();
            }
        }


        producer.close();
    }
}
